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Correcting the colour-dipole cascade model with fixed order matrix elements

Author

Summary, in English

An algorithm is presented in which the Colour-Dipole Cascade Model as implemented in the Ariadne program is corrected to match the fixed order tree-level matrix elements for e e(+) --> n jets. The result is a full parton level generator for e e(+) annihilation where the generated states are correct on tree-level to fixed order in alpha(s) and to all orders with modified leading logarithmic (MLLA) accuracy. In this paper, matrix elements are used up to second order in alpha(s), but the scheme is applicable also for higher orders. A strategy for also including exact virtual corrections to fixed order is suggested and the possibility to extend the scheme to hadronic collisions is discussed.

Publishing year

2002

Language

English

Publication/Series

Journal of High Energy Physics

Issue

5

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • parton model
  • phenomenological models
  • jets
  • QCD

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479